19th-century engraving depicting electromagnetic telegraphs, manufactured by Siemens & Halske AG, founded in 1847 by Ernst Werner von Siemens and Joha

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19th-century engraving depicting electromagnetic telegraphs, manufactured by Siemens & Halske AG, founded in 1847 by Ernst Werner von Siemens and Johann Georg Halske. Illustration published in Systematischer Bilder Atlas - Bauwesen, Ikonographische Encyklopaedie der Wissenschaften und Kuenste (Brockhaus, Leipzig) in 1875.

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Size: 4000px × 2995px
Location: Germany
Photo credit: © Les Archives Digitales / Alamy / Afripics
License: Royalty Free
Model Released: No

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